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Barisan Geometri

Authored by Iwwa HILWAH

Mathematics

11th Grade

Used 10+ times

Barisan Geometri
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rumus suku ke-n  barisan geometri adalah ...

Un=a+(n−1)bU_n=a+(n-1)b     

Un=a.r(n−1)U_n=a.r^{\left(n-1\right)}

Un=u2u1U_n=\frac{u_2}{u_1}

Un=unu(n−1)U_n=\frac{u_n}{u_{\left(n-1\right)}}

Un=n2(a+Un)U_n=\frac{n}{2}(a+U_n)

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rasio/pembanding dari barisan geometri dinyatakan dengan rumus ...

r=a+(n−1)br=a+(n-1)b

r=a.r(n−1)r=a.r^{\left(n-1\right)}

r=u1u2r=\frac{u_1}{u_2}

r=unu(n−1)r=\frac{u_n}{u_{\left(n-1\right)}}

r=n2(a+Un)r=\frac{n}{2}(a+U_n)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

    Barisan geometri berikut manakah yang bukan barisan geometri naik?

1,2,4,8,....1,2,4,8,....

32,16,8,4,...32,16,8,4,...

1,3,9,27,...1,3,9,27,...

127,19,13,1,…\frac{1}{27},\frac{1}{9},\frac{1}{3},1,\dots

12,1,2,4,…\frac{1}{2},1,2,4,\dots

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Berikut ini yang bukan barisan geometri adalah ...

1,2,4,8,16,…1,2,4,8,16,\dots

3,6,12,24,48,…3,6,12,24,48,\dots

1,13,19,127,181,…1,\frac{1}{3},\frac{1}{9},\frac{1}{27},\frac{1}{81},\dots

1,−1,1,−1,1,…1,-1,1,-1,1,\dots

3,1,0,13,16,…3,1,0,\frac{1}{3},\frac{1}{6},\dots

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rasio dari barisan   1627,89,43,2,…\frac{16}{27},\frac{8}{9},\frac{4}{3},2,\dots adalah ...

34\frac{3}{4}

43\frac{4}{3}

32\frac{3}{2}

23\frac{2}{3}

13\frac{1}{3}

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Diketahui barisan geometri   2,4,8,…2,4,8,\dots suku ke 7 adalah ...

64

128

256

512

1024

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Diketahui barisan 576,288,144,…576,288,144,\dots  suku keberapakah 9  ?

7

8

9

10

11

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